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Technical Section


European Cable Stranding

 


Guidelines have been established for measuring conductor sizes within the European Cable industry. In the past, conductors were normally measured by either their cross sectional area, number and diameter of individual strands, or both. The new system for flexible conductors (column 3 & 4 below) centers around the maximum strand diameter and the conductor resistance. In view of this, some cables may have less strands and a smaller diameter than listed below but still conform to BS 6360, VDE 0295, and IEC 228 by meeting conductor resistance requirements.

Cross Section mm2

Strands
VDE 0295
BS6360 Class 2
Multi-Wire Strands

Fine Wire Strands VDE 0295 BS6360 Class 5

Extra fine Wire Strands
VDE 0295 BS 6360 Class 6


Super fine Wire Strands



Super fine Wire Strands



Super fine Wire Strands



 
(1)
(2)
(3)
(4)
(5)
(6)
(7)
0.05
           
24 x 0.05
0.08
           
41 x 0.05
0.14
     
18 x 0.10
18 x 0.1
36 x 0.07
72 x 0.05
0.25
   
14 x 0.16
32 x 0.10
32 x 0.1
65 x 0.07
128 x 0.05
0.34
 
7 x 0.25
19 x 0.16
42 x 0.10
42 x 0.1
88 x 0.07
174 x 0.05
0.38
 
7 x 0.27
12 x 0.21
21 x 0.15
48 x 0.1
100 x 0.07
194 x 0.05
0.50
7 x 0.30
7 x 0.30
16 x 0.21
28 x 0.15
64 x 0.1
131 x 0.07
256 x 0.05
0.75
7 x 0.37
7 x 0.37
24 x 0.21
42 x 0.15
96 x 0.1
195 x 0.07
384 x 0.05
1.0
7 x 0.43
7 x 0.43
32 x 0.21
56 x 0.15
128 x 0.1
260 x 0.07
512 x 0.05
1.5
7 x 0.52
7 x 0.52
30 x 0.26
84 x 0.15
192 x 0.1
392 x 0.07
768 x 0.05
2.5
7 x 0.67
19 x 0.41
50 x 0.26
140 x 0.15
320 x 0.1
651 x 0.07
1280 x 0.05
4
7 x 0.85
19 x 0.52
56 x 0.31
224 x 0.15
512 x 0.1
1040 x 0.07
 
6
7 x 1.05
19 x 0.64
84 x 0.31
192 x 0.20
768 x 0.1
1560 x 0.07
 
10
7 x 1.35
49 x 0.51
80 x 0.41
320 x 0.20
1280 x 0.1
2600 x 0.07
 
16
7 x 1.70
49 x 0.65
128 x 0.41
512 x 0.20
2048 x 0.1
   
25
7 x 2.13
84 x 0.62
200 x 0.41
800 x 0.20
3200 x 0.1
   
35
7 x 2.52
133 x 0.58
280 x 0.41
1120 x 0.20
     
50
19 x 1.83
133 x 0.69
400 x 0.41
705 x 0.30
     
70
19 x 2.17
189 x 0.69
356 x 0.51
990 x 0.30
     
95
19 x 2.52
259 x 0.69
485 x 0.51
1340 x 0.30
     
120
37 x 2.03
336 x 0.67
614 x 0.51
1690 x 0.30
     
150
37 x 2.27
392 x 0.69
765 x 0.51
2123 x 0.30
     
185
37 x 2.52
494 x 0.69
944 x 0.51
1470 x 0.40
     
240
61 x 2.24
627 x 0.70
1225 x 0.51
1905 x 0.40
     
300
61 x 2.50
790 x 0.70
1530 x 0.51
2385 x 0.40
     
400
61 x 2.89
 
2035 x 0.51
       
500
61 x 3.23
 
1768 x 0.51
       

NOTE: The number of wires in columns (3) - (7) is optional. VDE 0295 specifies only the maximum diameter of the individual wires and the maximum resistance assigned to the cross-section.

 
30 AWG Stranding
METRIC
34 AWG Stranding
AWG
Strand
mm2
CLASS 5
mm2
DCR
CLASS 6
Strand
mm2
26
     
.14
42.0
18 / .10
7/34
0.14
24
   
14 / .15
.25
24.0
32 / .10
10/34
0.20
22
7/30
0.35
19 / .15
.34
17.3
42 / .10
19/34
0.38
20
10/30
0.51
16 / .21
.50
11.8
28 / .15
26/34
0.52
18
19/30
1.00
24 / .21
.75
7.92
42 / .15
41/34
.083
     
32 / .21
1.0
5.94
56 / .15
   
16
26/30
1.32
30 / .26
1.5
4.05
84 / .15
65/34
1.31
14
41/30
2.08
50 / .26
2.5
2.43
140 / .15
105/34
2.11
12
65/30
3.30
56 / .31
4
1.50
224/.15
168/34
3.38
10
105/30
5.32
84 / .31
6
1.00
192 / .20
259/34
5.21
8
168/30
8.52
80 / .41
10
.582
320 / .20
413/34
8.31
6
266/30
13.5
128 / .41
16
.368
512 / .20
665/34
13.40
4
413/30
21.0
200 / .41
25
.237
800 / .20
1064/34
21.40
2
665/30
33.7
280 / .41
35
.168
1120 / .20
1666/34
33.50
1
836/30
43.0
400 / .41
50
.117
705 / .30
2109/34
42.0
2/0
1330/30
67.0
356 / .50
70
.082
990 / .30
   
3/0
   
485 /.50
95
.062
1340 / .30
   
4/0
2107/30
106
614 /.50
120
.049
1690 / .30
   
300 KCMIL
   
765 / .50
150
.039
2123 / .30
   
350 KCMIL
   
944 / .50
185

0.32

1470 / .40
   
500 KCMIL
   
1225 / .50
240
.024
1905 / .40
   
600 KCMIL
   
1530 / .50
300
.019
2385 / .40
   
750 KCMIL
   
2035 / .50
400
.014
     
1000 KCMIL
   
1768 / .60
500
.011
     


 
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